Anycubic Kobra - Mechanical power of button - With Video

Hi

I design a Mechanical “auto” power off for the Anycubic Kobra. The project needs a little of Electrical knowledge to know how to connect the cables. The cover Picture is my prototype, on the download files is one that I designed afterwards and tested. 

Maybe the button that you buy have some plastic holders on the sided, mine had too and I cut it off. 

Print data:

• Quality 0,3
• Infill 45%
• ABS/PLA
• 50mm/s

I used one pole switch with back light, he can be installed on the blue or brown cable BEFORE the DC power supply using the cables coming from the main switch on the side of the machine. 

You will need to open the lid under the printer in order to install the cables. That can be easily done. PLEASE WORK WITH THE MACHINE DISCONNECT FROM THE CURRENT. After installing, you can check if the buttons cut off the main switch from the machine. I would advise to disconect the DC power supply (Red and Black cables) while testing too. 

You will also need to change your end codes. I use this sequence at the end. Do not copy what is in bracket. 

G28 X0 - (The printer head will go to the side)

G4 S300; Machine waits 5 minutes

G28 Y-5 (The bed will retracts further as normal)

M84

When the machine starts, she goes a little further in the Y axis, that is why the button hast to be placed in position after the machine starts printing. When The machine goes back to 0 she will not press the button. In that way you can still use the entire surface of your bed.